v2smartclasses

Write a function called draw rectangle that takes a Canvas and a Rectangle as arguments and draws a representation of the Rectangle on the Canvas.

Answer:

from tkinter import *

master=Tk()

w=Canvas(master,width=200,height=100)

w.pack()

w.create_line(0,0,200,100)

w.create_line(0,100,200,0,fill='red',dash=(4,4))

w.create_rectangle(50,20,150,75,fill='blue')

master.mainloop()

Output:

Write a function called draw point that takes a Canvas and a Point as arguments and draws a representation of the Point on the Canvas.

Answer:

from tkinter import*

canvas_width=500

canvas_height=150

def paint(event):

python_green="#476042"

x1, y1 = (event.x - 1), (event.y - 1)

x2,y2=(event.x +1),(event.y+1)

w.create_oval(x1,y1,x2,y2,fill=python_green)

master = Tk()

master.title("Points")

w=Canvas(master,width=canvas_width,height=canvas_height)

w.pack(expand=YES,fill=BOTH)

w.bind("<B1-Motion>", paint)

message=Label(master, text="Press and Drag the mouse to draw")

message.pack(side=BOTTOM)

mainloop()

Output:

Define a new class called Circle with appropriate attributes and instantiate a few Circle objects. Write a function called draw circle that draws circles on the canvas.

Answer:

from tkinter import*

canvas_width=190

canvas_height =150

master =Tk()

w=Canvas(master,width=canvas_width,height=canvas_height)

w.pack()

w.create_oval(50,50,150,100)

master.mainloop()

Output:

Write a Python program to demonstrate the usage of Method Resolution Order (MRO) in multiple levels of Inheritances.

Answer:

class A:

def rk(self):

print(" In class A")

class B(A):

def rk(self):

print("Inclass B")

class C(A):

def rk(self):

print("Inclass C")

# classes ordering

class D(B,C):

pass

r=D()

r.rk()

Output:

Inclass B

Write a python code to read a phone number and email-id from the user and validate it for correctness.

Answer:

import re

# Make a regular expression

# for validating an Email

Reg_exp= r'\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,7}\b'

# Define a function for

# for validating an Email

def check(email):

# pass the regular expression

# and the string into the fullmatch() method

if(re.fullmatch(reg_exp, email)):

print("Valid Email")

else:

print("Invalid Email")

# Driver Code

if __name__ == '__main__':

# Enter the email

email = "sateeshnagavarapu@gmail.com"

# calling run function

check(email)

email = "mrit@ac.in"

check(email)

email = "v2smartclasses.com"

check(email)

Output:

Valid Email

Invalid Email